Question

(18/7 + 3 - 5/4) + (1 2/7 + 13/7 - 2 1/7) gracias porfavor rapido

Answer 1

Explicación paso a paso:

$\left(18/7+3-5/4\right)+\left(\frac{1\frac{2}{7}+13}{7-2\frac{1}{7}}\right)$

$\left(18/7+3-5/4\right)+\left(\frac{\frac{9}{7}+13}{7-2\frac{1}{7}}\right)$

$\left(18/7+3-5/4\right)+\left(\frac{\frac{9}{7}+13}{7-\frac{15}{7}}\right)$

$=\frac{18}{7}+3-\frac{5}{4}+\frac{\frac{9}{7}+13}{7-\frac{15}{7}}$

Agrupar términos semejantes:

$=-\frac{5}{4}+\frac{18}{7}+\frac{\frac{9}{7}+13}{-\frac{15}{7}+7}+3$

$=\frac{\frac{9}{7}+13}{-\frac{15}{7}+7}$

=   $\frac{\frac{9}{7}+13}{\frac{34}{7}}$

=    $\frac{\frac{100}{7}}{\frac{34}{7}}$

=   $\frac{100\cdot \:7}{7\cdot \:34}$  = 50 / 17

$=-\frac{5}{4}+\frac{18}{7}+\frac{50}{17}+3$

$=7\frac{125}{476}$